中国马鞭草科一新归化种——南假马鞭  

Stachytarpheta australis Moldenke(Verbenaceae),A Newly Naturalized Species for China

作　　者：刘明超[1,2] 韦春强[1] 唐赛春[1] 岑艳喜[1,2] 

机构地区：[1]广西壮族自治区中国科学院广西植物研究所,广西桂林541006 [2]广西师范大学生命科学学院,广西桂林541004

出　　处：《植物科学学报》2011年第5期649-651,共3页Plant Science Journal

基　　金：广西自然科学基金北部湾重大专项项目(2011GXNSFE018005);上海辰山植物园科研专项课题(G1024011);广西植物研究所科研业务费项目(桂植业10011)

摘　　要：首次报道了中国一新归化种——南假马鞭Stachytarpheta australis Moldenke,该种与《中国植物志》收录的假马鞭Stachytarpheta jamaicensis(Linn.)Vahl有明显的区别。南假马鞭叶膜质或纸质,叶柄长0.3～1 cm;穗状花序纤细,长15～45 cm,直径约3 mm,被短柔毛,序轴柔韧,凹穴几乎和序轴等宽,苞片狭披针形,长约5 mm,花萼被毛,花冠浅蓝色或几乎白色。假马鞭叶稍肉质,叶柄长0.3～3.5 cm;穗序花序较粗硬,长15～50 cm,直径达7 mm,光滑无毛,序轴硬,凹穴明显比序轴窄,苞片披针形或长椭圆状披针形,长5～8 mm,花萼无毛,花冠常紫红色、蓝色或紫色。In this paper,we report on a newly recorded naturalized plant in China,Stachytarpheta australis Moldenke.This species was obviously different from Stachytarpheta jamaicensis（Linn.） Vahl,which had been recorded in ＂Flora of China＂previously.Its leaves were membranous or chartaceous,petioles 0.3-1 cm long,spikes slender,15-45 cm long,ca.3 mm in diameter,usually short-pubescent throughout,rachis somewhat flaccid,the furrows nearly as wide as the rachis,bracts narrowly lanceolate,ca.5 mm long,calyx hairy,corolla pale blue or almost white.In S.jamaicensis,however,leaves are somewhat fleshy,petioles 0.3-3.5 cm long,spikes stout and stiff,15-50 cm long,up to 7 mm in diameter,glabrous,rachis stout and firm,the furrows conspicuously narrower than the rachis,bracts lanceolate or oblong-lanceola-te,5-8 mm long,calyx hairless,corolla usually mauve,blue,violet or purple.

关 键 词：南假马鞭 假马鞭属 新归化种 中国 

分 类 号：Q949.777.5[生物学—植物学]